Carpenter&#39;s gage.



Patented may 7, lem.

F. L. cAms.

GARPENTERS GAGE.

(Applcton Med Jan. 7, 1901.)

(I Iu Model.)

UNITED STATES PATENT OFFICE.

FRANK L. CARIS, OF MEADVILLE, PENNSYLVANIA.

CARPENTERS GAG E.

SPECIFICATION fOrmng part 0f Letters Patent No. 673,677, dated May 7, 1901.

Application led January 7, 1901. Serial No. 42.410. (No model.) n

To ,all whom t may concern:

Be it known that I, FRANK L. CARIs, a citizen of the United States, residing at Meadville, Crawford county, Pennsylvania, have invented certain lnew and useful Improvements in Carpenters Gages, of which the following is a specification.

My invention relates to improvements in carpenters gages; and the object of the invention is to provide a construction which may be quickly and accurately adjusted as desired.

I have illustrated the invention in the accompanying drawings, in which- Figure l is a side elevation'of the improved gage, and Fig. 2 is an end view. Fig. 3 is an end view of a modification. Fig. 4 is a crosssectional viewof the same on line 43 3, and Fig. 5 is an end view of another modiiication.

In the drawings, A represents the shank, and'B the head, thev shank being provided with the ordinary scratch-awl a.L Instead of using a'set-screw to secure the head tothe shank in any desired position, as is usually done, I make the shank with part of its periphery eccentric, as indicated at a', this eccentric portion terminating in a square shoulder or rib, as indicated at 0,2. The head of the gage, which I prefer to make round, as shown, is providedwith a similar opening having a portion of its wall eccentric and with a similar shoulder b. It will thus be seen that when the head is in such a position on the shank that the shoulders are in contact the fit of the head on the shank is of sufficientmotion of the parts of course unlocks the head and the contacting of the shoulders insures their being in such relative position as to be freely movable the one with the other. I

also find it desirable to provide a scale on the face of the shank, as indicated at C, whereby the head vmay be quickly and accurately adjusted by measure to any extent wished.

To hold the head securely in adjusted position against accidental displacement, so that after the gage is set it will not be displaced when laid down, a yielding device is interposed between rib a2 and shoulder b, which tends to force the two apart, thus normally locking the head in place. To adjust the head, the parts are forced together against the pressure of the yielding device.

In Figs. 3 and 4 the yielding device employed is a rubber strip or block d, secured to the shoulder b, while in Fig. 5 a flat spring p d', secured to the side of head B, having its free end extending between said shoulders, performs the same function.

Having thus described my invention, what I claim is`- l l. The Vcombination in a carpenters gage with a shank having an eccentric portion and a head having a corresponding opening therein, ofl a yielding device interposed between the head and shank to lock the parts together.

2. The combination in a carpenters gage with a shank having an eccentric portion terminating in a shoulder and-a head having a corresponding portion with an oppositely-arranged shoulder, of a yielding device interposed between said shoulders.

3. The combination in a carpenters gage with a shank having an eccentric portion terminating in a shoulder and a headhaving a corresponding portion with an oppositely-arranged shoulder, of a yielding device interposed between said shoulders, said device being carried by said head.

In testimony whereof I aiiix my signature in presence of two witnesses.

FRANK L. CARIS.

Witnesses FRED H. MURRAY, DAVID F. VAN RIPEN. 

